99570101 has 2 divisors, whose sum is σ = 99570102. Its totient is φ = 99570100.

The previous prime is 99570077. The next prime is 99570113. The reversal of 99570101 is 10107599.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50779876 + 48790225 = 7126^2 + 6985^2 .

It is an emirp because it is prime and its reverse (10107599) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99570101 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is equal to p_5738063 and since 99570101 and 5738063 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99570131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49785050 + 49785051.

It is an arithmetic number, because the mean of its divisors is an integer number (49785051).

Almost surely, 2^99570101 is an apocalyptic number.

It is an amenable number.

99570101 is a deficient number, since it is larger than the sum of its proper divisors (1).

99570101 is an equidigital number, since it uses as much as digits as its factorization.

99570101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2835, while the sum is 32.

The square root of 99570101 is about 9978.4818985655. The cubic root of 99570101 is about 463.4927898049.

The spelling of 99570101 in words is "ninety-nine million, five hundred seventy thousand, one hundred one".